REAL SERVER HTTP RECORDING | AFTER Commit: f49719d7a4cb9e2373ca31fad8d7b06a368bd123 Environment: Linux; isolated fresh database; no copied data; no credentials Transport: loopback HTTP; external callbacks are HTTPS; synthetic OAuth client 1. POST /oauth/mcp/register Client: Six Callback Evidence Callbacks (same six on both sides): https://callback.example.com/oauth/1 https://callback.example.com/oauth/2 https://callback.example.com/oauth/3 https://callback.example.com/oauth/4 https://callback.example.com/oauth/5 https://callback.example.com/oauth/6 grant_types=[authorization_code]; response_types=[code]; auth_method=none HTTP 201 client_id: [returned; signature omitted from public evidence] Registered callback count: 6 token_endpoint_auth_method: none 2. GET /oauth/mcp/authorize (registered callback 1; PKCE S256) HTTP 302 Location: /connect-agent?[OAuth parameters omitted] 3. POST /oauth/mcp/approval (same authorization parameters; no session) HTTP 200 { "clientName": "Six Callback Evidence", "redirectHost": "callback.example.com", "environmentHost": "[isolated loopback server]" } End of recorded HTTP interaction. No Spark account or T3 Connect used.